A way to visualise asset criticality and help prioritise improvement Have you ever wanted a single chart that provided a quick way of seeing the main reliability problems for your fleet? Perhaps a Jack-knife chart will help. Before presenting the Jack-Knife, it is worth stepping back and thinking about some…

Part 3, Tying the task metrics to a higher level In the previous two blogs, we have defined low-level metrics for maintenance tasks. One of the critical success factors in deploying metrics is having a manageable number to set as organisational goals, to avoid being unfocused or overwhelmed. The metrics we have defined need to be part of a system…

Part 2. The underlying metrics for On-condition and failure finding maintenance tasks Metrics are measurements that help us manage a system. Metrics should be understandable, and business-led. We should also recognise metrics influences the behaviour of our people and lastly, too many metrics may blur our focus. …

Part 1. The underlying metrics for scheduled replacement or restoration type tasks. — In previous blogs, we defined a breakdown of maintenance task types and later on discussed how Weibull analysis helped us identify some of the conditions for applying the types of task. We will build on those foundations. This blog will start to look at metrics for each maintenance task type…

why can it seem so wasteful? — In my career, I have heard several people criticise on-condition maintenance as being wasteful. To paraphrase “There are so many inspections and they hardly ever find a failure, especially after conducting an RCM project”. In this blog, we will explore this issue by discussing some of the principles behind on-condition…

Part 2: A vision for the future: In Part 1 we discussed how important data for maintenance may be held in a number of different silos. This data may be held in incompatible formats with different labels and names that describe common entities. Traditional database management systems also contain structured…

Part One: The Current Method — In maintenance many processes we conduct rely on data. Some of this data may need to be elicited from experts and may not be encoded. Codified data may be split between different disparate systems and may not be easily linked. …

The data, distribution and what this means for maintenance — In my career I have often found that Weibull analysis has been treated as if it is far too difficult and expensive to conduct. This might have been true when computing power and digital technology for gathering and processing data was uncommon. …

Clarifying the Terminology — Maintenance can be a complex domain. There are several categories of maintenance tasks with varying descriptions, including: preventative, corrective, predictive, proactive, scheduled, unscheduled, condition based, and reliability centred maintenance. In this blog we will put forward a taxonomy of maintenance tasks that not only includes a description of each category…